Privacy

In short: Kalkulo does not collect personal information, uses no tracking cookies, and requires no login. Details below.

What we don't do

Analytics

We use GoatCounter to see which calculators are actually used — without it, further prioritization is pure guesswork. GoatCounter is chosen because it's cookieless and doesn't permanently store your IP address or other personal information: the IP is only used briefly (in memory, not in a database) to estimate which country the visit comes from, and is then discarded. What's stored is aggregated, anonymous numbers — page views, browser/OS type, screen width and referring page — nothing that can be traced back to you as an individual. The data is hosted in the EU (Germany/Finland).

Third-party resources loaded

The site is static and has no backend of its own. The fonts are self-hosted — they live in our own assets folder and aren't loaded from Google or other third parties. Three exceptions exist, all on specific Norwegian-language calculators:

Security

The site sends a Content-Security-Policy header that restricts which domains the site itself can load scripts, styles and data from (only ourselves, plus the services mentioned above), along with a couple of other standard security headers. This is an extra layer of defense on top of what's described above — it doesn't change what's collected.

Embed feature

Calculators embedded on other websites via our embed code work the same way — no data is sent to Kalkulo.

Contact

Questions about privacy can be sent to kalkulo.app@gmail.com.